JP5733262B2 - Refrigeration equipment - Google Patents

Description

  The present invention relates to a refrigeration apparatus that cools a power device with a refrigerant flowing in a refrigerant circuit.

  2. Description of the Related Art Conventionally, a refrigeration apparatus including a cooler that cools a power device with refrigerant flowing through a refrigerant circuit is known. For example, Patent Document 1 discloses a refrigeration apparatus having a refrigerant circuit that performs a refrigeration cycle by circulating refrigerant, a refrigerant pipe through which the refrigerant flows, a power device, and cooling that cools the power device with the refrigerant. What is provided with a vessel is disclosed. Since the power device generates heat when driven, it is required to be cooled.

  The cooler includes a refrigerant jacket having a pipe arrangement groove for arranging the refrigerant pipe, and a heat transfer plate in surface contact with the refrigerant jacket. Both the refrigerant jacket and the heat transfer plate are made of a material having high thermal conductivity such as aluminum. The refrigerant pipe is fixed to the refrigerant jacket by being press-fitted into the pipe arrangement groove. The power device is disposed in contact with the heat transfer plate. That is, the power device is thermally connected to the refrigerant flowing through the refrigerant pipe via the heat transfer plate and the refrigerant jacket. Therefore, the power device is cooled by the refrigerant flowing through the refrigerant pipe through the heat transfer plate and the refrigerant jacket.

JP 2011-033340 A

  In the refrigeration apparatus as described in Patent Document 1, in order to efficiently cool the power device, it is necessary to secure a contact area of each member. For this reason, the refrigeration apparatus described in Patent Document 1 has a structure in which the refrigerant pipe is press-fitted into each groove, but this structure takes time and effort in press-fitting operations in the manufacturing process. Therefore, it can be considered that the refrigerant pipe is simply placed in the groove without being pressed into each groove. However, the refrigerant pipe may have a slight undulation in its axial direction. In this case, in the structure in which the refrigerant pipe is placed in the groove, the contact area between the refrigerant pipe and the refrigerant jacket is sufficiently large. It cannot be secured.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a refrigeration apparatus capable of sufficiently ensuring a contact area between a refrigerant pipe and a refrigerant jacket by a simple method. And

  In order to solve the above problem, it is conceivable to provide a pressing plate that presses the refrigerant pipe against the pipe arrangement groove by sandwiching the refrigerant pipe with the refrigerant jacket. In this way, the swell of the refrigerant pipe is suppressed, and a contact area between the refrigerant pipe and the refrigerant jacket is secured. Here, when fixing the pressing plate to the refrigerant jacket, if the refrigerant pipe has waviness in its axial direction, the pressing of the refrigerant pipe with the pressing plate so as to correct the waviness. However, it is necessary to fix both with screws. Therefore, when the refrigerant pipe is pressed by the holding plate so as to correct the swell of the refrigerant pipe, the holding plate receives a force in a direction away from the refrigerant jacket due to the elastic force of the refrigerant pipe. In order to fix both of the pipes with the holding plate and the refrigerant jacket sandwiched therebetween, for example, the holding plate is pressed against the refrigerant jacket with one hand, and both are fixed with a screw or the like with the other hand. It is assumed that this work is required. However, this work causes a significant reduction in work efficiency.

  Therefore, the present invention is a refrigeration apparatus having a refrigerant circuit that performs a refrigeration cycle by circulating refrigerant, wherein a refrigerant pipe through which the refrigerant flows, a power device, and a cooler that cools the power device by the refrigerant The cooler includes a refrigerant jacket having a pipe arrangement groove for arranging the refrigerant pipe, a holding plate for pressing the refrigerant pipe between the refrigerant jacket, and the refrigerant pipe with respect to the pipe arrangement groove. And a fixing fixture for fixing the pressing plate to the refrigerant jacket so that the pressing plate is pressed against the refrigerant jacket, the refrigerant jacket has a refrigerant jacket-side temporary fixing portion, and the pressing plate has the refrigerant jacket. A retaining plate side temporary fixing portion capable of temporarily fixing the pressing plate to the refrigerant jacket by engaging with the side temporary fixing portion; The side temporary fixing part and the pressing plate side temporary fixing part are engaged with each other by being relatively slid in an intersecting direction intersecting a pressing direction for pressing the refrigerant pipe against the pipe arrangement groove, and Provided is a refrigeration apparatus that regulates displacement of the pressing plate in a direction away from the refrigerant jacket by receiving the elastic force of the refrigerant pipe in an engaged state.

  According to the refrigeration apparatus of the present invention, the pressing plate can be temporarily fixed to the refrigerant jacket in a state in which the refrigerant pipe is pressed against the pipe arrangement groove, and in this state, the permanent fixing is performed. Since this can be fixed (fixed) by the tool, a sufficient contact area between the refrigerant pipe and the refrigerant jacket can be ensured, and the work efficiency of assembling the cooler can be improved. That is, the refrigerant jacket has the refrigerant jacket-side temporary fixing portion, the pressing plate has the pressing plate-side temporary fixing portion, and both the temporary fixing portions are relatively slid in the intersecting direction. Therefore, the pressing plate can be temporarily fixed to the refrigerant jacket by sliding the pressing plate in the intersecting direction with respect to the refrigerant jacket. At this time, the holding plate is restricted from being displaced in a direction away from the refrigerant jacket by receiving the elastic force of the refrigerant pipe, that is, the refrigerant pipe is resisted against the elastic force. The refrigerant jacket is temporarily fixed in a state of being pressed against the pipe arrangement groove. Therefore, after that, the assembly of the cooler is completed only by fixing the pressing plate to the refrigerant jacket with the fixed fastener. Therefore, a sufficient contact area between the refrigerant pipe and the refrigerant jacket is ensured, and the presser plate needs to be pressed against the refrigerant jacket while resisting the elastic force when the cooler is assembled. Disappears.

  Further, since the pressing plate is temporarily fixed by sliding in the intersecting direction with respect to the refrigerant jacket, the direction opposite to the sliding direction when the pressing plate is temporarily fixed to the refrigerant jacket. This temporary fixing can be easily released simply by sliding it to the right. Therefore, in order to handle both the holding plate and the refrigerant jacket as a unit before the main fastening, there is no need for a separate fixing member for fixing both. Therefore, for example, before the refrigerant pipe is installed, the pressure plate and the refrigerant jacket are transported in a temporarily fixed state, and when the refrigerant pipe is installed, the temporary fixing is released and the refrigerant pipe is arranged. Thus, the operation of assembling the cooler is simplified.

  Further, in the present invention, the refrigerant jacket side temporary fixing portion is provided on the other end side of the first refrigerant jacket side temporary fixing portion provided on one end side in a direction orthogonal to the direction in which the piping arrangement groove extends. A second refrigerant jacket side temporary fixing part, wherein the holding plate side temporary fixing part is engageable with the first refrigerant jacket side temporary fixing part, and the second refrigerant. A second pressing plate side temporary fixing portion engageable with the jacket side temporary fixing portion, and the first refrigerant jacket side temporary fixing portion and the first pressing plate side temporary fixing portion are configured such that the pressing plate is the refrigerant. A first state maintained in a posture in which the refrigerant pipe is sandwiched between the jacket and a second state in which the pressing plate is maintained in a posture in which the refrigerant pipe is not sandwiched between the refrigerant jacket. The presser plate is allowed to rotate between the presser plate and the presser plate In the first state, the first refrigerant jacket side temporary fixing portion and the first pressing plate side temporary fixing portion are engaged with each other and have a shape that allows sliding in the intersecting direction with respect to the refrigerant jacket. When the second refrigerant jacket side temporary fixing part and the second pressing plate side temporary fixing part are engaged with each other, the pressing plate is maintained in a posture of sandwiching the refrigerant pipe with the refrigerant jacket, and the second In the state, the engagement of the second refrigerant jacket side temporary fixing part and the second pressing plate side temporary fixing part is released, and the second refrigerant jacket side temporary fixing part and the second pressing plate side temporary fixing part are By displacing the first refrigerant jacket-side temporary fixing portion and the first pressing plate-side temporary fixing portion in directions away from each other with the rotation supporting point as a rotation fulcrum, the holding plate is sandwiched between the refrigerant jacket and the refrigerant jacket. It is preferably maintained in a posture that does not perform himself.

  If it does in this way, the efficiency of the assembly operation | work of the said cooler can be made still better. That is, the holding plate has a first state in which the refrigerant pipe is sandwiched between the refrigerant jacket and a second state in which the refrigerant pipe is not sandwiched between the refrigerant jacket and the refrigerant jacket. Since the posture of the second state is maintained, the refrigerant pipe can be arranged without separating the pressing plate and the refrigerant jacket. Specifically, after placing the refrigerant pipe in the pipe arrangement groove with the holding plate in the second state, the first refrigerant jacket side temporary fixing part and the first holding plate side temporary fixing part are rotated. The pressing plate is rotated as a moving fulcrum, and the second refrigerant jacket side temporary fixing portion and the second pressing plate side temporary fixing portion are engaged with each other to bring the pressing plate into the first state. Thus, the temporary fixing of the pressing plate to the refrigerant jacket is completed.

  In the present invention, it is preferable that the refrigerant jacket and the pressing plate have holding means for holding the refrigerant jacket-side temporary fixing portion and the pressing plate-side temporary fixing portion in an engaged state.

  If it does in this way, the temporary stop state of the refrigerant jacket and the pressing plate is effectively maintained. As a result, even if vibration is applied to both of them in the temporarily fixed state, the occurrence of a problem such that the pressing plate is detached from the refrigerant jacket is suppressed, so that both of them in the temporarily fixed state can be easily handled. Become.

  Moreover, in this invention, it is preferable that the said cooler is arrange | positioned with the attitude | position in which the sliding direction with respect to the said refrigerant | coolant jacket of the said press board becomes a vertically downward direction.

  By doing so, the pressing plate is slid vertically along the refrigerant jacket, that is, by sliding the pressing plate along the direction of gravity, so that both of them are in a temporarily fixed state. Therefore, the pressing plate is slid in a direction against gravity. Unlike the case where both are set in the temporarily fixed state, the temporary fixed state of the both is stabilized.

  Moreover, in this invention, it is preferable that the said press plate has a shape which can be elastically deformed when the said refrigerant | coolant jacket side temporary fix part and the said press plate side temporary fix part are engaged.

  In this way, it is easy to temporarily fix the pressing plate to the refrigerant jacket.

  As described above, according to the present invention, it is possible to provide a refrigeration apparatus having good working efficiency when a pressing plate is attached to a refrigerant jacket.

It is a figure which shows roughly the piping system of the freezing apparatus of one Embodiment of this invention. FIG. 2 is a front view of the outdoor unit shown in FIG. 1, with the machine room exposed. It is a perspective view of the cooler in the outdoor unit shown in FIG. It is the perspective view which made the pressing plate of the cooler shown in FIG. 3 the 2nd state. It is a perspective view which shows the state in which the holding plate of the cooler shown in FIG. 3 is not temporarily fixed. It is a top view of the holding plate of the cooler shown in FIG. It is a left view of the holding plate shown in FIG. It is a right view of the pressing board shown in FIG. It is a front view of the support leg of the cooler shown in FIG. FIG. 10 is a plan view of the support leg shown in FIG. 9. FIG. 10 is a right side view of the support leg shown in FIG. 9. It is sectional drawing which shows the state before fixing a fixing board to a refrigerant | coolant jacket. It is sectional drawing which shows the state which fixed the presser plate to the refrigerant | coolant jacket.

  An indoor unit according to an embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a state where the front panel of the outdoor unit 2 is removed and the machine room is exposed. FIG. 3 shows a state in which a fixture 80 of the cooler 30 described later is omitted. That is, a state in which a press plate 70 described later is temporarily fixed to the refrigerant jacket 40 is shown. The refrigerant pipe 10 is omitted.

  FIG. 1 shows a piping system of the refrigeration apparatus 1 of the present embodiment. Specifically, the refrigeration apparatus 1 is a heat pump type air conditioner capable of a cooling operation and a heating operation. As shown in FIG. 1, the refrigeration apparatus 1 includes an outdoor unit 2 installed outside and an indoor unit 3 installed indoors. The outdoor unit 2 and the indoor unit 3 are connected via a refrigerant pipe 10. It is connected. The refrigeration apparatus 1 has a refrigerant circuit in which a refrigerant pipe 10 is connected in a closed circuit shape. The refrigerant circuit mainly includes an indoor heat exchanger 11, a compressor 12, an oil separator 13, an outdoor heat exchanger 14, an expansion valve 15, which is an expansion mechanism, an accumulator 16, and a four-way switching valve 17. In this refrigerant circuit, a refrigerant is circulated to perform a vapor compression refrigeration cycle.

  The indoor heat exchanger 11 is a heat exchanger for exchanging heat between the refrigerant and room air, and is provided in the casing of the indoor unit 3. Examples of the indoor heat exchanger 11 include a cross fin type fin-and-tube heat exchanger. An indoor fan (not shown) for sending room air to the indoor heat exchanger 11 is provided in the vicinity of the indoor heat exchanger 11.

  The compressor 12, the oil separator 13, the outdoor heat exchanger 14, the expansion valve 15, the accumulator 16, and the four-way switching valve 17 are provided in the casing of the outdoor unit 2.

  The compressor 12 has a suction port, a compression mechanism, and a discharge port. The refrigerant sucked from the suction port is compressed by the compression mechanism and discharged from the discharge port. As the compressor 12, for example, a scroll compressor can be adopted.

  The oil separator 13 is for separating the lubricating oil from the mixed fluid of the lubricating oil and the refrigerant discharged from the compressor 12. The separated refrigerant is sent to the four-way switching valve 17, and the lubricating oil is returned to the compressor 12.

  The outdoor heat exchanger 14 is for exchanging heat between the refrigerant and outdoor air. For example, a cross fin type fin-and-tube heat exchanger can be adopted. An outdoor fan for sending outdoor air to the outdoor heat exchanger 14 is provided in the vicinity of the outdoor heat exchanger 14.

  The expansion valve 15 is provided between the outdoor heat exchanger 14 and the indoor heat exchanger 11 in the refrigerant circuit. The expansion valve 15 is decompressed by expanding the inflowing refrigerant to obtain a predetermined pressure. An example of the expansion valve 15 is an electronic expansion valve with a variable opening.

  The accumulator 16 separates the gas and liquid of the refrigerant that has flowed in, and is provided between the suction port of the compressor 12 and the four-way switching valve 17 in the refrigerant circuit. The gas refrigerant separated by the accumulator 16 is sucked into the compressor 12.

  The four-way switching valve 17 has four ports, a first port to a fourth port. The four-way switching valve 17 includes a first mode (a mode indicated by a solid line in FIG. 1) in which the first port and the third port communicate with each other and a second port and a fourth port, and the first port and the fourth port. Can be switched between a second mode (a mode indicated by a broken line in FIG. 1) in which the second port and the third port are simultaneously communicated. The first port is connected to the discharge port of the compressor 12 via the oil separator 13, the second port is connected to the suction port of the compressor 12 via the accumulator 16, and the third port is used for outdoor heat exchange. The fourth port is connected to the indoor heat exchanger 11 via the refrigerant pipe 10. When the refrigerating apparatus 1 performs the cooling operation, the four-way switching valve 17 is set to the first mode, and when the heating operation is performed, the four-way switching valve 17 is set to the second mode.

  As shown in FIGS. 1 and 2, among the refrigerant pipes 10 of the refrigerant circuit, a pipe through which the liquid refrigerant flows is provided with a cooler 30 for cooling the power device 20 mounted on the printed wiring board 90. Connected. In the part of the refrigerant pipe 10 to which the cooler 30 is connected, the refrigerant condensed in the outdoor heat exchanger 14 flows during the cooling operation, condenses in the indoor heat exchanger 11 during the heating operation, and the expansion valve 15 The refrigerant depressurized with flows. In FIG. 1, the cooler 30 is connected to a portion of the refrigerant pipe 10 between the outdoor heat exchanger 14 and the expansion valve 15. However, the portion to which the cooler 30 is connected is limited to this position. I can't. However, considering the cooling efficiency, the cooler 30 is preferably connected to the liquid side pipe, that is, the pipe through which the liquid refrigerant flows.

  Examples of the power device 20 include a compressor control inverter, a fan motor control module, and the like. The power device 20 generates heat when driven, and thus needs to be cooled.

  As shown in FIG. 3 to FIG. 5, the cooler 30 includes a refrigerant jacket 40, a pressing plate 70 fixed to the refrigerant jacket 40, and a fixing that fixes the pressing plate 70 against the refrigerant jacket 40. And a tool 80 (omitted in FIGS. 3 to 5). The cooler 30 has a shape that is long in one direction, and is attached to the printed wiring board 90 in a posture in which the longitudinal direction is the vertical direction (vertical direction in FIG. 2). As will be described later, the holding plate 70 has a structure that can be temporarily fixed to the refrigerant jacket 40, and the fixture 80 can be permanently fixed in a state where the holding plate 70 is temporarily fixed to the refrigerant jacket 40. It functions as a fixture 80.

  The refrigerant jacket 40 includes a jacket main body 50 interposed between the refrigerant pipe 10 and the power device 20 and in contact with both, and support legs 60 a and 60 b for attaching the jacket main body 50 to the printed wiring board 90. .

  The jacket body 50 is made of a material having high thermal conductivity such as aluminum. The jacket body 50 is formed by extrusion and has a long shape in one direction. As shown in FIGS. 4, 12, and 13, the jacket main body 50 is in direct contact with the power device 20 and the first pipe placement groove 51 </ b> L and the second pipe placement groove 51 </ b> R for placing the refrigerant pipe 10. It has a device contact surface 52, a pressing plate mounting portion 53 for mounting the pressing plate 70, a first avoiding portion 54L and a second avoiding portion 54R, and a first concave portion 55L and a second concave portion 55R. The first piping arrangement groove 51L and the second piping arrangement groove 51R, the pressing plate mounting portion 53, the first avoidance portion 54L, and the second avoidance portion 54R are on the surface side of the jacket body 50 (the upper side in FIGS. 12 and 13). The device contact surface 52, the first concave portion 55L, and the second concave portion 55R are formed on the back side of the jacket body 50 (the lower side in FIGS. 12 and 13). Further, the jacket main body 50 has a reference surface 50a including end portions of the first pipe arrangement groove 51L and the second pipe arrangement groove 51R on the holding plate 70 side. The reference surface 50a has a flat shape.

  51 L of 1st piping arrangement | positioning grooves are dented toward the back surface side (lower side of FIG. 12) rather than the reference surface 50a, and are comprised by the concave receiving surface which can receive a part of refrigerant | coolant piping 10. As shown in FIG. This receiving surface is formed of a concave curved surface having an inner diameter larger than the outer diameter according to the outer diameter of the refrigerant pipe 10. The first piping arrangement groove 51L has a shape extending along the longitudinal direction of the jacket main body 50. The second pipe arrangement groove 51R extends in a direction parallel to the first pipe arrangement groove 51L, has the same cross-sectional shape as the first pipe arrangement groove 51L, and is provided side by side with the first pipe arrangement groove 51L.

  The device contact surface 52 is a part that is in direct contact with the power device 20. Here, the term “directly contacted” with the power device 20 means that the power device 20 is in direct contact with the power device 20, and is configured to be in contact with the power device 20 via a coating agent such as grease having high thermal conductivity. Including. The device contact surface 52 has a flat shape extending along the longitudinal direction of the jacket body 50. Further, the device contact surface 52 is set so that the dimension in the short direction is equal to or larger than the dimension in the same direction of the heat generating portion of the power device 20.

  The presser plate mounting portion 53 is formed between the first pipe placement groove 51L and the second pipe placement groove 51R, and has a shape projecting toward the presser plate 70 (upper side in FIG. 12) from the reference surface 50a. . The presser plate attaching portion 53 is provided at the approximate center in the short direction of the jacket body 50, has a certain height in the thickness direction of the jacket body 50 (vertical direction in FIG. 12), and The jacket body 50 is formed with a constant height throughout the longitudinal direction. The pressing plate mounting portion 53 has a flat upper surface. The retainer plate attachment portion 53 includes a fixture attachment portion 53 a that fixes the fixture 80. The fixture attachment portion 53 a has a shape extending from the upper surface of the pressing plate attachment portion 53 in the thickness direction of the jacket main body 50. In this embodiment, a screw having a head and a shaft connected to the head is used as the fixture 80, and the fixture attachment portion 53a is a screw hole capable of fixing the shaft.

  The first avoidance portion 54L is formed between the first pipe placement groove 51L and the pressing plate attachment portion 53, and has a shape that avoids interference with a first convex portion 73L1 described later. Specifically, the first avoiding portion 54L has a shape that is recessed toward the back surface side (the lower side in FIG. 12) from the reference surface 50a. Further, the first avoiding portion 54L has a shape capable of locking a positioning projection 63 described later. Specifically, it has a flat bottom portion formed on the back surface side (lower side in FIG. 12) from the reference surface 50a, and an upright portion that rises from both sides of the bottom portion toward the reference surface 50a side. Since the second avoidance portion 54R has the same structure as the first avoidance portion 54L except that it is formed between the second piping arrangement groove 51R and the pressing plate attachment portion 53, the description thereof is omitted.

  The first recess 55L and the second recess 55R are formed in order to ensure an insulation distance from each lead of the power device 20. The first recess 55L and the second recess 55R have a shape that is recessed from the device contact surface 52 in a direction away from each lead of the power device 20 (the surface side of the jacket body 50).

  As shown in FIGS. 3, 9 to 11, and the like, the support legs include a first support leg 60 a fixed to one end side (left side in FIG. 3) in the longitudinal direction of the jacket body 50, and the other end side (FIG. 3). And a second support leg 60b fixed to the right side). Each of these support legs 60a and 60b has the same shape, but for convenience, some parts will be described with different reference numerals. In the present embodiment, the support legs 60 a and 60 b are fixed to both ends of the jacket body 50 in the longitudinal direction by screws or the like. The jacket body 50 can be molded by a method different from the extrusion molding. In this case, the jacket body 50 and the support legs 60a and 60b may be integrally formed.

  The first support leg 60a includes a main body support portion 61 that supports the jacket main body 50, an attachment portion 62 for attaching the main body support portion 61 to the printed wiring board 90, and positioning the main body support portion 61 with respect to the jacket main body 50. Positioning protrusion 63, first refrigerant jacket side temporary fixing part 64, and second refrigerant jacket side temporary fixing part 65. The main body support portion 61, the mounting portion 62, the positioning protrusion 63, the first refrigerant jacket side temporary fixing portion 64, and the second refrigerant jacket side temporary fixing portion 65 are integrally formed.

  The second support leg 60 b includes a main body support portion 61, a mounting portion 62, a positioning protrusion 63, a first refrigerant jacket side temporary fixing portion 66, and a second refrigerant jacket side temporary fixing portion 67. That is, the first refrigerant jacket-side temporary fixing portion 64 of the first support leg 60a and the second refrigerant jacket-side temporary fixing portion 67 of the second support leg 60b are given the same signs, but have the same shape. The second refrigerant jacket-side temporary fixing part 65 of the first support leg 60a and the first refrigerant jacket-side temporary fixing part 66 of the second support leg 60b are given the same reference numerals but have the same shape.

  The main body support portion 61 has a shape that is long in the short direction of the jacket main body 50, and has a portion that is superimposed on the end surface and the back surface side in the longitudinal direction of the jacket main body 50. The main body support portion 61 has a screw hole 61 a at a portion that contacts the back side of the jacket main body 50. The support leg 60 is fixed to the jacket main body 50 through a screw through the screw hole 61 a in a state where the portion is in contact with the back side of the jacket main body 50.

  The attachment portion 62 is connected to the portion in a bent state from the portion of the main body support portion 61 that is overlapped with the back side of the jacket body 50, and has a shape that can be fixed to the printed wiring board 90. The mounting portion 62 is set to a dimension that can secure a space for disposing the power device 20 between the surface of the printed wiring board 90 and the device contact surface 52.

  The positioning protrusion 63 extends from the upper edge of the portion of the main body support 61 that overlaps the longitudinal end surface of the jacket main body 50 in a direction parallel to the portion of the main body support 61 that overlaps the back side of the jacket main body 50. Protruding. In the present embodiment, the positioning protrusions 63 are formed at two positions spaced in the longitudinal direction of the main body support part 61, and the positioning protrusions 63 are the first avoiding part 54L and the second avoiding part 54R. It has a shape that can be engaged with. Then, the support leg 60 is positioned with respect to the jacket main body 50 by engaging the positioning protrusion 63 with the first avoidance portion 54L and the second avoidance portion 54R. Specifically, the positioning projection 63 abuts against the standing portions of the avoidance portions 54L and 54R, thereby restricting the displacement of the jacket body 50 in the short direction.

  The first refrigerant jacket side temporary fixing portions 64 and 66 are connected in a bent state with respect to one end in the longitudinal direction of the main body support portion 61, and the second refrigerant jacket side temporary fixing portions 65 and 67 are connected to the main body support portion 61. Are connected in a bent state to the other end in the longitudinal direction. The first refrigerant jacket side temporary fixing portions 64 and 66 and the second refrigerant jacket side temporary fixing portions 65 and 67 are short of the jacket main body 50 with the support legs 60 a and 60 b being fixed to the jacket main body 50. It has a shape along both sides of the direction.

  The first refrigerant jacket side temporary fixing portion 64 of the first support leg 60a is continuous with the first opening 64a capable of locking a first pressing plate side temporary fixing portion 75L described later, and the first opening 64a. It has an insertion opening 64b (FIG. 10) that allows insertion of the one pressing plate side temporary fixing portion 75L. Specifically, the 1st opening 64a is formed in the upper part of the 1st refrigerant | coolant jacket side temporary fix | stop part 64, and exhibits substantially rectangular shape. The insertion opening 64b is continuous with the upper part of the first opening 64a and has a substantially rectangular shape. The insertion opening 64b is formed such that the dimension in the direction matching the longitudinal direction of the jacket body 50 is larger than the dimension in the same direction of the first opening 64a when the support leg 60a is fixed to the jacket body 50. Yes. The second refrigerant jacket side temporary fixing part 65 of the first support leg 60a can lock a second opening 65a that can lock a second pressing plate side temporary fixing part 75R described later and a locked part 76R described later. And a locking portion 65b. Specifically, the 2nd opening 65a is formed in the upper part of the 2nd refrigerant | coolant jacket side temporary fix | stop part 65, and exhibits substantially rectangular shape. The locking portion 65b is formed below the second opening 65b and has a substantially rectangular shape.

  The first refrigerant jacket side temporary fixing part 66 of the second support leg 60b (the same shape as the second refrigerant jacket side temporary fixing part 65 of the first support leg 60a) can lock the first pressing plate side temporary fixing part 75L. A first opening 66a. The second refrigerant jacket side temporary fixing part 67 of the second support leg 60b (the same shape as the first refrigerant jacket side temporary fixing part 64 of the first support leg 60a) can lock the second pressing plate side temporary fixing part 75R. A second opening 67a. Since the first opening 66a has the same shape as the second opening 65a and the second opening 67a has the same shape as the first opening 64a, the description thereof is omitted.

  The functions of these temporary fixing portions 64 to 67 will be described later.

  As shown in FIGS. 3 to 8, the holding plate 70 is for sandwiching the refrigerant pipe 10 with the refrigerant jacket 40, and has a long shape in the same direction as the refrigerant jacket 40. The pressing plate 70 is formed of a single sheet metal, and is formed by bending at an appropriate position along a line extending in the longitudinal direction. The holding plate 70 is pressed against the refrigerant jacket 40 by the fixture 80, a first pressing portion 72L and a second pressing portion 72R, and a first elastic deformation portion 73L having a first convex portion 73L1. The second elastic deformation portion 73R having the second convex portion 73R1, the first pressing portion 72L, the first connecting portion 74L connected to the outer side in the short direction of the pressing plate 70, the second pressing portion 72R, and the And a second connecting portion 74 </ b> R connected to the outer side of the pressing plate 70 in the short direction. When the pressed portion 71 is pressed against the refrigerant jacket 40 by the fixture 80, the pressing plate 70 presses the refrigerant pipe 10 against the grooves 51L and 51R when the pressed portions 72L and 72R press the refrigerant pipe. It has rigidity capable of correcting 10 swells. The pressing plate 70 has a shape that can be elastically deformed when the refrigerant jacket side temporary fixing portions 64 to 67 are engaged with the pressing plate side temporary fixing portions 75L and 75R.

  The pressed portion 71 is formed so as to extend in the longitudinal direction at the approximate center of the pressing plate 70 in the short direction, and has a flat shape. The pressed portion 71 has an insertion hole 71 a for inserting the shaft portion of the fixture 80. Then, the shaft portion of the fixture 80 inserted through the insertion hole 71 a is fixed to the fixture attachment portion 53 a of the jacket main body 50, so that the pressed portion 71 is pressed by the head of the fixture 80. It is pressed toward 53.

  The first pressing portion 72L is cantilevered by the pressed portion 71 via the first elastic deformation portion 73L. The first pressing portion 72L is a portion that presses the refrigerant pipe 10 against the first pipe disposition groove 51L when the pressed portion 71 is pressed toward the jacket main body 50 by the fixture 80. That is, the most depressed portion of the inner surface of the first pressing portion 72L and the receiving surface of the first pipe placement groove 51L from the reference surface 50a in a state where the pressed portion 71 is pressed toward the jacket main body 50 by the fixture 80. Is set to be smaller than the outer diameter of the refrigerant pipe 10. The first pressing portion 72L has a shape that is long in the same direction as the longitudinal direction of the refrigerant pipe 10, and the portion of the refrigerant pipe 10 that is placed in the first pipe arrangement groove 51L throughout the first pipe arrangement groove. Press against the surface of 51L. As shown in FIG. 12, the first pressing portion 72 </ b> L is directed from the inner side to the outer side in the short direction of the pressing plate 70 in a state where the pressed portion 71 is not pressed against the jacket body 50 by the fixture 80. Inclined so as to approach the jacket body 50. Since the second pressing portion 72R has a shape symmetrical to the first pressing portion 72L with respect to the pressed portion 71, description thereof is omitted.

  The first elastic deformation portion 73L is formed between the pressed portion 71 and the first pressing portion 72L, and has a shape extending from one end to the other end of the pressing plate 70 in the longitudinal direction. The first elastic deformation portion 73L is convex toward the jacket body 50 side and has a first convex portion 73L1 that is long in the longitudinal direction of the pressing plate 70 (the direction in which the refrigerant pipe 10 extends). The first convex portion 73L1 has a function of increasing the rigidity of the pressing plate 70 because the cross section thereof has a convex shape. The first elastic deformation portion 73L is configured such that the first pressing portion 72L receives a reaction force from the refrigerant pipe 10 when the pressed portion 71 is pressed toward the jacket main body 50 by the fixture 80. It is elastically deformed so as to allow displacement in the direction away from. The first elastic deformation portion 73L has a shape that protrudes from the pressed portion 71 toward the refrigerant jacket 40, and the protruding dimension is a dimension between the bottom portion of the first avoidance portion 54L and the upper surface of the pressing plate mounting portion 53. Therefore, the first convex portion 73L1 does not interfere with the first avoidance portion 54L. Since the second elastic deformation portion 73R has a shape symmetrical to the first elastic deformation portion 73L with respect to the pressed portion 71, description thereof is omitted.

  The state of elastic deformation of the elastic deformation portions 73L and 73R will be described with reference to FIGS. When the shaft portion of the fixture 80 is fixed (fixed) to the fixture attachment portion 53 a, the pressed portion 71 is pressed against the holding plate attachment portion 53 by the head of the fixture 80. At this time, the first elastic deformation portion 73L has an angle θ (FIG. 12) forming the first convex portion 73L1 that is smaller than the angle θ ′ (FIG. 13), that is, its convex shape is Elastically deforms to change. The same applies to the second elastic deformation portion 73R. Accordingly, the first pressing portion 72L and the second pressing portion 72R are allowed to be displaced in a direction away from the jacket body 50 due to the reaction force from the refrigerant pipe 10, and as a result, the first pressing portion 72L The surface and the surface of the second pressing portion 72R are substantially flush. At this time, the first convex portion 73L1 does not interfere with the first avoiding portion 54L, and the second convex portion 73R1 does not interfere with the second avoiding portion 54R.

  The first connecting portion 74L is connected to the first pressing portion 72L on the inner side in the short direction, and the outer side in the short direction is a free end. The first connecting portion 74L includes a first pressing plate side temporary fixing portion 75L having a shape that can be engaged with the first refrigerant jacket side temporary fixing portions 64 and 66. Specifically, the first pressing plate-side temporary fixing part 75L is stamped so that a part of the first connecting part 74L remains in a substantially T-shaped part, and is bent outward in the substantially T-shaped part. It is formed by. As shown in FIG. 6, the first pressing plate side temporary fixing portion 75 </ b> L includes a portion extending in the short direction of the pressing plate 70 and a portion extending in the longitudinal direction. The function of the first pressing plate side temporary fixing portion 75L will be described later.

  The second connecting portion 74R is connected to the second pressing portion 72R on the inner side in the lateral direction, and the outer side in the lateral direction is a free end. The second connecting portion 74R has a second pressing plate side temporary fixing portion 75R having a shape engageable with the second refrigerant jacket side temporary fixing portions 65, 67. Specifically, the second pressing plate-side temporary fixing part 75R is stamped so that a part of the second connecting part 74R remains in an approximately L-shaped part, and is bent outward in the approximately L-shaped part. It is formed by. As shown in FIG. 6, the second pressing plate side temporary fixing portion 75 </ b> R has a portion extending in the short direction of the pressing plate 70 and a portion extending in the longitudinal direction, and the portion extending in the longitudinal direction corresponds to the pressing plate 70. Projecting in the same direction as the sliding direction when temporarily fixing the coolant to the refrigerant jacket 40. The function of the second pressing plate side temporary fixing portion 75R will be described later.

  The second connecting portion 74R also includes a locked portion 76R having a shape engageable with the locking portion 65b of the second refrigerant jacket side temporary locking portion 65, and a support piece 77R that supports the locked portion 76R. Have. By forming the slit 74R1 in the second connecting portion 74R, the locked portion 76R and the support piece 77R are formed. Therefore, the support piece 77R can be displaced in the plate thickness direction with respect to other portions of the second connecting portion 74R with the end portion on the opposite side to the locked portion 76R as a fulcrum. The locked portion 76R can be supported. The locked portion 76R and the support piece 77R constitute holding means together with the locking portion 65b. The holding means holds the refrigerant jacket side temporary fixing portions 64 to 67 and the pressing plate side temporary fixing portions 75L and 75R in an engaged state.

  Here, the first refrigerant jacket side temporary fixing portions 64, 66 and the first pressing plate side temporary fixing portion 75L, the second refrigerant jacket side temporary fixing portions 65, 67, the second pressing plate side temporary fixing portion 75R, and the holding means. (The locking portion 65b, the locked portion 76R, and the support piece 77R) will be described.

  The first refrigerant jacket side temporary fixing portions 64, 66 and the first pressing plate side temporary fixing portion 75L can be engaged with each other, and the second refrigerant jacket side temporary fixing portions 65, 67 and the second pressing plate side temporary fixing portion. The 75R can be engaged with each other. When all these temporary fixing portions are engaged, the pressing plate 70 is temporarily fixed to the refrigerant jacket 40 (FIG. 3).

  The first refrigerant jacket-side temporary fixing portions 64 and 66 and the first pressing plate-side temporary fixing portion 75L are maintained in a first state in which the pressing plate 70 is sandwiched between the refrigerant jacket 40 and the refrigerant pipe 10 (FIG. 3). ) And a second state (FIG. 4) in which the presser plate 70 is maintained in a posture in which the refrigerant pipe 10 is not sandwiched between the presser plate 70 and the refrigerant jacket 40. Have Here, in the first state, the first refrigerant jacket-side temporary fixing portions 64, 66 and the first pressing plate-side temporary fixing portion 75L are engaged with each other, and the second refrigerant jacket-side temporary fixing portions 65, 67, and the first The two pressing plate side temporary fixing portions 75 </ b> R are engaged with each other, so that the pressing plate 70 is maintained in a posture of sandwiching the refrigerant pipe 10 with the refrigerant jacket 40. In this state, the temporary fixing portions 64 to 67, 75 </ b> L, and 75 </ b> R restrict displacement of the pressing plate 70 in the direction away from the refrigerant jacket 40 by receiving the elastic force of the refrigerant pipe 10. In the second state, the engagement of the second refrigerant jacket side temporary fixing portions 65 and 67 and the second pressing plate side temporary fixing portion 75R is released, and the first pressing plate side temporary fixing portion 75L becomes the first refrigerant. The first refrigerant jacket-side temporary fixing portions 64 and 66 and the first press in a state of being inserted through the first opening 64a of the jacket-side temporary fixing portion 64 and the first opening 66a of the first refrigerant jacket-side temporary fixing portion 66, respectively. Using the plate-side temporary fixing portion 75L as a rotation fulcrum, the second pressing plate-side temporary fixing portion 75R is displaced in a direction away from the second refrigerant jacket-side temporary fixing portions 65, 67 while coming out of the second openings 65a, 67a. Thus, the pressure plate 70 is maintained in a posture in which the refrigerant pipe 10 is not sandwiched between the pressure jacket 70 and the refrigerant jacket 40.

  Also, as shown in FIGS. 4 and 5, the first refrigerant jacket side temporary fixing portions 64 and 66 and the first pressing plate side temporary fixing portion 75L, the second refrigerant jacket side temporary fixing portions 65 and 67, and the second pressing member. The plate-side temporary fixing portion 75R is configured to be engaged with and disengaged from each other when the holding plate 70 is slid relative to the direction in which the holding plate 70 presses the refrigerant pipe 10 with respect to the pipe placement grooves 51L and 51R. Have In the present embodiment, the intersecting direction is a direction orthogonal to the pressing direction and parallel to the longitudinal direction of the jacket body 50 and the pressing plate 70 (the horizontal direction in FIG. 5 and the vertical direction in FIG. 2). When the pressing plate 70 is slid in the intersecting direction (the left direction in FIG. 5 and the downward direction in FIG. 2) and temporarily fixed to the refrigerant jacket 40, the insertion hole 71a of the pressing plate 70 and the fixture mounting portion 53a Are coincident with each other (FIG. 3).

  Specifically, the dimension in the intersecting direction of the first opening 64a of the first refrigerant jacket side temporary fixing part 64 is smaller than the same dimension of the first pressing plate side temporary fixing part 75L and is used for insertion. The dimension in the same direction in the opening 64b is set to be the same as or slightly larger than the dimension in the same direction of the first pressing plate side temporary fixing part 75L. The dimension of the second opening 65a of the second refrigerant jacket side temporary fixing part 65 in the intersecting direction is set to be larger than the dimension of the second pressing plate side temporary fixing part 75R in the same direction. The dimension of the first opening 66a of the first refrigerant jacket side temporary fixing part 66 in the intersecting direction is set to be smaller than the dimension of the first pressing plate side temporary fixing part 75L in the same direction. And the dimension of the said crossing direction in the 2nd opening 67a of the 2nd refrigerant | coolant jacket side temporary fix | stop part 67 is set so that it may become larger than the dimension of the same direction of the 2nd press board side temporary fix | fixed part 75R.

  Therefore, in a state where the first pressing plate side temporary fixing part 75L on one side (right side in FIG. 4) is inclined with respect to the first refrigerant jacket side temporary fixing part 66, the first pressing plate side temporary fixing part 75L is After being inserted into the first opening 66a so as to extend from the inner side to the outer side of the one refrigerant jacket side temporary fixing part 66, the other first holding plate side temporary fixing part 75L (first left side in FIG. 4) is provided with the first refrigerant jacket side temporary fixing part 75L. Each first pressing plate side temporary fixing portion 75L is inserted into the first opening 64a by being inserted from the insertion opening 64b so as to extend from the inside to the outside of the stopping portion 64, whereby the first refrigerant jacket side temporary fixing portion 64 is provided. , 66 abuts against the jacket body 50 from the outside (FIG. 4). Thereafter, the pressing plate 70 is rotated with the first refrigerant jacket side temporary fixing portions 64 and 66 and the first pressing plate side temporary fixing portion 75L as rotation fulcrums, and each second pressing plate side temporary fixing portion 75R is moved to the second refrigerant. After being positioned in the second opening 65a of the jacket side temporary fixing part 65 and the second opening 67a of the second refrigerant jacket side temporary fixing part 67, the holding plate 70 is moved in the cross direction (left direction in FIG. 5, FIG. 2). By sliding it downward), all the temporary fixing portions engage with each other and the holding plate 70 is temporarily fixed to the refrigerant jacket 40 (FIG. 3). At this time, the locked portion 76R is slidably in contact with the inner surface of the second refrigerant jacket side temporary fixing portion 65 while being bent inward in the plate thickness direction of the pressing plate 70, and elastically outward in the plate thickness direction. It returns and engages with the locking portion 65b. Thereby, the temporary fixing state of each temporary fixing part, ie, the temporary fixing state of the refrigerant jacket 40 and the pressing plate 70, is effectively held. Further, at this time, the axial directions of the insertion hole 71a of the pressing plate 70 and the fixture mounting portion 53a coincide (FIG. 3).

  Next, the manufacturing method of the refrigeration apparatus of this embodiment is demonstrated. This manufacturing method includes a preparation process, an assembly process, a refrigerant piping arrangement process, a temporary fixing process, and a final fixing process.

  In the preparation step, the jacket body 50 manufactured by extrusion molding is provided with the refrigerant jacket 40 to which the support legs 60a and 60b are fixed, the pressing plate 70 manufactured through press processing and bending processing, and the fixture 80. Is a step of preparing

  The assembling process is a process of assembling the pressing plate 70 to the refrigerant jacket 40. In this step, the first pressing plate side temporary fixing portion 75L is inclined with respect to the first pressing plate side temporary fixing portion 75L with respect to the first refrigerant jacket side temporary fixing portion 66 (right side in FIG. 4). Is inserted into the first opening 66a so as to extend from the inner side to the outer side of the first refrigerant jacket side temporary fixing part 66, and the other (left side in FIG. 4) first pressing plate side temporary fixing part 75L is the first refrigerant jacket. The presser plate 70 is assembled to the refrigerant jacket 40 by being inserted from the insertion opening 64b so as to extend from the inner side to the outer side of the side temporary fixing part 64 and positioned in the first opening 64a. At this time, the first pressing plate side temporary fixing portions 75L abut against the first refrigerant jacket side temporary fixing portions 64 and 66 from the outside, so that the pressing plate 70 is in the second state with respect to the jacket body 50. Maintained (FIG. 4).

  The refrigerant piping arrangement step is a step of arranging the refrigerant piping 10 in each of the grooves 51L and 51R of the refrigerant jacket 40 while keeping the holding plate 70 in the second state. In this step, first, a coating agent such as grease having high thermal conductivity is applied to the surface of each of the pipe placement grooves 51L and 51R, and then the refrigerant pipe 10 is placed on the surface of each of the grooves 51L and 51R. The application of the coating agent can be omitted.

  The temporary fixing process is a process of temporarily fixing the holding plate 70 to the refrigerant jacket 40 in a state where the refrigerant pipe 10 is placed in each of the pipe arrangement grooves 51L and 51R. In this step, the pressing plate 70 is rotated with the first refrigerant jacket side temporary fixing portions 64 and 66 and the first pressing plate side temporary fixing portion 75L as rotation fulcrums, and each second pressing plate side temporary fixing portion 75R is moved to the first position. The second refrigerant jacket side temporary fixing part 65 is positioned in the second opening 65a and the second refrigerant jacket side temporary fixing part 67 in the second opening 67a (FIG. 5). Thereafter, the holding plate 70 is slid in the intersecting direction (left side in FIG. 5 and downward in FIG. 2). Thereby, all the temporary fixing parts are engaged with each other, and the pressing plate 70 is temporarily fixed to the refrigerant jacket 40 (FIG. 3). For this reason, the pressing plate 70 is restricted from being displaced away from the refrigerant jacket 40 while receiving the elastic force of the refrigerant pipe 10. At this time, the locked portion 76R is engaged with the locking portion 65b, so that the temporarily fixed state of each temporarily fixed portion is securely held. Further, at this time, the axial directions of the insertion hole 71a of the pressing plate 70 and the fixture mounting portion 53a coincide (FIG. 3).

  The main fixing step is a step of finally fixing (fixing) the pressing plate 70 to the refrigerant jacket 40. In this step, the shaft portion of the fixture 80 is inserted into the insertion hole 71a of the holding plate 70 temporarily fixed to the refrigerant jacket 40, and the shaft portion is fixed to the fixture attachment portion 53a. As a result, the pressed portion 71 is pressed toward the pressing plate mounting portion 53 by the head. At this time, the dimension between the inner surface of the first pressing portion 72L and the surface of the first piping arrangement groove 51L and the dimension between the inner surface of the second pressing portion 72R and the surface of the second piping arrangement groove 51R are respectively Since it is set to be smaller than the outer diameter of the refrigerant pipe 10, the first pressing portion 72 </ b> L and the second pressing portion 72 </ b> R connect the refrigerant pipe 10 to the first pipe arrangement groove 51 </ b> L and the second pipe arrangement groove 51 </ b> R, respectively. Press against (FIG. 13). At this time, the first elastic deformation portion 73L has an angle θ (FIG. 12) forming the first convex portion 73L1 that is smaller than the angle θ ′ (FIG. 13), that is, its convex shape is Similarly, the second elastic deformation portion 73R is elastically deformed so that the angle θ (FIG. 12) forming the second convex portion 73R1 becomes a smaller angle θ ′ (FIG. 13). That is, it is elastically deformed so that its convex shape changes. Therefore, the holding plate 70 can sandwich the refrigerant pipe 10 having a diameter larger than the dimension between the pressing portions 72L and 72R and the pipe placement grooves 51L and 51R with the refrigerant jacket 40. Elastic force generated by elastic deformation of the elastic deformation portions 73L and 73R is transmitted to the refrigerant pipe 10 through the pressing portions 72L and 72R.

  When the refrigeration apparatus 1 is driven to operate in this state, that is, when the refrigeration cycle is executed, the refrigerant flows through the refrigerant pipe 10 and the power device 20 is driven to generate heat at the heat generating portion. However, since the power device 20 is thermally connected to the liquid refrigerant via the refrigerant jacket 40 and the refrigerant pipe 10, the power device 20 passes through the refrigerant pipe 10 via the refrigerant jacket 40 and the refrigerant pipe 10. It is cooled by the flowing refrigerant.

  As described above, according to the refrigeration apparatus 1 of the present embodiment, the pressing plate 70 is temporarily fixed to the refrigerant jacket 40 in a state where the refrigerant pipe 10 is pressed against the pipe arrangement grooves 51L and 51R. In this state, the main fixing fixture 80 can be used to fix (fix), so that a sufficient contact area between the refrigerant pipe 10 and the refrigerant jacket 40 can be secured, and the work efficiency of assembling the cooler 30 can be secured. Can be made good. Specifically, the refrigerant jacket side temporary fixing portions 64 to 67 and the pressing plate side temporary fixing portions 75L and 75R are engaged with each other by being relatively slid in the intersecting direction. By sliding the jacket 40 in the intersecting direction, the pressing plate 70 can be temporarily fixed to the refrigerant jacket 40. At this time, the holding plate 70 is in a state where displacement of the holding plate 70 in a direction away from the refrigerant jacket 40 by receiving the elastic force of the refrigerant pipe 10 is restricted, that is, the refrigerant pipe 10 against the elastic force. Is temporarily fixed to the refrigerant jacket 40 in a state where it is pressed against the pipe placement grooves 51L and 51R. Therefore, the assembly of the cooler 30 is completed only by fixing the pressing plate 70 to the refrigerant jacket 40 by the fixing fixture 80 for the rest. Therefore, a sufficient contact area between the refrigerant pipe 10 and the refrigerant jacket 40 is ensured, and it is necessary to press the pressing plate 70 against the refrigerant jacket 40 against the elastic force when the cooler 30 is assembled. Disappears.

  Further, since the pressing plate 70 is temporarily fixed by being slid in the intersecting direction with respect to the refrigerant jacket 40, it is opposite to the sliding direction when the pressing plate 70 is temporarily fixed to the refrigerant jacket 40. The temporary fixing can be easily released simply by sliding in the direction. For this reason, before the presser plate 70 and the refrigerant jacket 40 are permanently fixed, no separate fixing member is required for fixing them together. Therefore, for example, the pressure plate 70 and the refrigerant jacket 40 are temporarily fixed before the refrigerant pipe 10 is arranged, and the refrigerant pipe 10 is arranged by releasing the temporary fixation when the refrigerant pipe 10 is arranged. This simplifies the operation of assembling the cooler 30.

  Furthermore, since the pressing plate 70 is rotatable between the first state and the second state and the posture of the second state is maintained, the pressing plate 70 and the refrigerant jacket 40 are connected to each other. Arrangement work of the refrigerant pipe 10 can be performed without separation. Specifically, after the refrigerant pipe 10 is arranged in each of the pipe arrangement grooves 51L and 51R with the holding plate 70 in the second state, the holding plate 70 is rotated and then slid in the intersecting direction. By setting the plate 70 in the first state, the temporary fixing of the pressing plate 70 to the refrigerant jacket 40 is completed. Therefore, the efficiency of the assembly operation of the cooler 30 can be further improved.

  In addition, since the cooler 30 of the present embodiment includes holding means (the locking portion 65b, the locked portion 76R, and the support piece 77R), the temporarily fixed state between the refrigerant jacket 40 and the pressing plate 70 is effectively held. The As a result, even if vibration is applied to both of them in the temporarily fixed state, the occurrence of a problem such as the pressing plate 70 being detached from the refrigerant jacket 40 is suppressed, so that it is easy to handle both of them in the temporarily fixed state. Become.

  Further, the cooler 30 of the present embodiment is arranged in a posture in which the sliding direction of the pressing plate 70 when the pressing plate 70 is temporarily fixed to the refrigerant jacket 40 is vertically downward. On the other hand, when the pressing plate 70 is slid vertically downward, that is, along the direction of gravity, the both are temporarily stopped. Therefore, unlike the case where the press plate 70 is slid in the direction against the gravity and the both are put into a temporarily fixed state, both the temporarily fixed states are stabilized.

  Moreover, since the pressing plate 70 of this embodiment has a shape that can be elastically deformed when the refrigerant jacket side temporary fixing portions 64 to 67 and the pressing plate side temporary fixing portions 75L and 75R are engaged, Temporary fixing to the refrigerant jacket 40 becomes easy.

  Further, according to the cooler 30 of the present embodiment, a sufficient contact area between the refrigerant pipe 10 and the refrigerant jacket 40 can be ensured easily. Specifically, the pressing plate 70 can correct the undulation of the refrigerant pipe 10 pressed by the pressing portions 72L and 72R when the pressed portion 71 is pressed toward the refrigerant jacket 40 by the fixture 80. Since it has rigidity, each pressing part 72L and 72R can press the refrigerant | coolant piping 10 reliably with respect to each piping distribution groove 51L and 51R over the whole. Thus, the refrigerant pipe 10 is pressed against the refrigerant jacket 40 while receiving a load necessary for correcting the swell. Therefore, a sufficient contact area between the refrigerant pipe 10 and the refrigerant jacket 40 can be ensured.

  And since the pressing plate 70 has the 1st convex part 73L1 and 2nd convex part 73R1 of the shape extended in the longitudinal direction of the said pressing plate 70, sufficient bending rigidity with respect to the direction where each piping arrangement | positioning groove | channel 51L, 51R extends is ensured. However, the plate pressure of the pressing plate 70 can be reduced. That is, without increasing the thickness of the presser plate 70, it is resistant to a load that displaces the other end side in the thickness direction of the presser plate 70 with one end side in the extending direction of the convex portions 73L1 and 73R1 as a fulcrum. can do.

  Furthermore, each elastic deformation portion 73L, 73R is elastically deformed so as to change the convex shape of the convex portions 73L1, 73R1 when the pressed portion 71 is pressed against the refrigerant jacket 40 by the fixture 80. Displacement of the pressing portions 72L and 72R in the direction away from the refrigerant jacket 40 is facilitated. In other words, the refrigerant pipe 10 having an outer diameter larger than the dimension between each pressing part 72L, 72R and each pipe placement groove 51L, 51R can be easily sandwiched, and at the same time, each convex part whose convex shape has changed. The elastic force for returning the displacement of 73L1 and 73R1 acts to press the refrigerant pipe 10 against the pipe arrangement grooves 51L and 51R via the pressing portions 72L and 72R. Therefore, it becomes easier to secure the contact area between the refrigerant pipe 10 and the refrigerant jacket 40.

  Moreover, since the cooler 30 of the present embodiment includes the avoiding portions 54L and 54R that achieve both the function of avoiding interference with the convex portions 73L1 and 73R1 and the function of positioning the support legs 60a and 60b, the thickness of the refrigerant jacket 40 When the support legs 60a and 60b can be positioned with respect to the jacket main body 50, the portion of the jacket main body 50 where the support legs can be positioned on the jacket main body 50 can be separately provided. Can be omitted.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the said embodiment, the 1st refrigerant | coolant jacket side temporary fix part, the 2nd refrigerant jacket side temporary fix part, the 1st press board side temporary fix part, and the 2nd press plate side temporary fix part were each formed in two places. Although shown about the example, the structure formed in one place may be sufficient as each. In this case, it is preferable that each temporary fix | stop part is provided in the approximate center of the longitudinal direction of a cooler. Further, the temporary fixing portions that are engaged with each other may be reversed in shape from those shown in the present embodiment.

  Moreover, in the said embodiment, the 1st refrigerant | coolant jacket side temporary fix part 64,66 and the 1st press plate side temporary fix part 75L can rotate the press plate 70 between said 1st state and said 2nd state. The first refrigerant jacket side temporary fixing portions 64 and 66 and the first pressing plate side temporary fixing portion 75L have a shape that does not allow the pressing plate 70 to be rotated, that is, The same shape as the two refrigerant jacket side temporary fixing parts 65 and 67 and the second pressing plate side temporary fixing part 75R may be used.

  Moreover, in the said embodiment, although the pipe arrangement | positioning groove | channel was shown about the example provided in two places, this groove | channel may be provided only in one place.

  Further, in the above embodiment, the example in which the pressing plate mounting portion 53 is provided at the approximate center in the short direction of the jacket body 50 and the grooves 51L and 51R are provided at both ends has been described. The grooves 51L and 51R may be provided on one end side in the short side direction of 50 and the other end side.

  In the above embodiment, an example in which the pressing plate 70 has the elastic deformation portions 73L and 73R has been described, but the elastic deformation portions 73L and 73R may be omitted.

  Moreover, in the said embodiment, although the case where the refrigeration apparatus 1 was an air conditioning apparatus was illustrated, as the refrigeration apparatus 1, the water-cooled heat exchanger was provided instead of the air-cooled indoor heat exchanger 11, for example. It may be a hot water supply device or a cooling device.

DESCRIPTION OF SYMBOLS 1 Refrigeration apparatus 2 Outdoor unit 3 Indoor unit 10 Refrigerant piping 20 Power device 30 Cooler 40 Refrigerant jacket 50 Jacket body 51L First piping arrangement groove 51R Second piping arrangement groove 52 Device contact surface 53 Holding plate attachment part 53a Fixing part attachment part 54L 1st avoidance part 54R 2nd avoidance part 55L 1st recessed part 55R 2nd recessed part 60a 1st support leg 60b 2nd support leg 61 Main body support part 62 Attachment part 63 Positioning protrusion 64 1st refrigerant | coolant jacket side temporary fixing part 64a 1st One opening 64b Insertion opening 65 Second refrigerant jacket side temporary fixing part 65a Second opening 65b Locking part (holding means)
66 First refrigerant jacket side temporary fixing part 66a First opening 67 Second refrigerant jacket side temporary fixing part 67a Second opening 70 Holding plate 71 Pressed part 71a Insertion hole 72L First pressing part 72R Second pressing part 73L First elasticity Deformation part 73L1 1st convex part 73R 2nd elastic deformation part 73R1 2nd convex part 74L 1st connection part 74R 2nd connection part 74R1 Slit 75L 1st presser plate side temporary fix part 75R 2nd presser plate side temporary fix part 76R Covered Locking part (holding means)
77R support piece (holding means)
80 Fixing tool (fixing tool for permanent fastening)
90 Printed wiring board

Claims (5)

A refrigeration apparatus (1) having a refrigerant circuit that performs a refrigeration cycle by circulating refrigerant,
A refrigerant pipe (10) through which the refrigerant flows;
A power device (20);
A cooler (30) for cooling the power device (20) with the refrigerant,
The cooler (30) includes the refrigerant pipe (10) between the refrigerant jacket (40) having a pipe arrangement groove (51L, 51R) in which the refrigerant pipe (10) is arranged and the refrigerant jacket (40). And the pressing plate (70) is fixed to the refrigerant jacket (40) so that the refrigerant pipe (10) is pressed against the piping arrangement groove (51L, 51R). A fixed fastener (80),
The refrigerant jacket (40) has a refrigerant jacket side temporary fixing part (64 to 67),
The presser plate (70) can be temporarily fixed to the refrigerant jacket (40) by engaging the refrigerant jacket side temporary fixing part (64 to 67) with the presser plate side temporary stop. With stop (75L, 75R)
The refrigerant jacket side temporary fixing part (64 to 67) and the pressing plate side temporary fixing part (75L, 75R) hold down the refrigerant pipe (10) against the pipe arrangement groove (51L, 51R). The refrigerant jackets (70) are engaged with each other by being slid relative to each other in the intersecting direction intersecting with the refrigerant jacket (70), and the retaining plate (70) receives the elastic force of the refrigerant pipe (10) in the engaged state. 40) having a shape that regulates displacement in a direction away from
The refrigerant jacket side temporary fixing portions (64 to 67) and the pressing plate side temporary fixing portions (75L, 75R) are configured such that the pressing plate (70) and the refrigerant jacket (40) are connected to the refrigerant pipe (10). A first state that is maintained in a posture that sandwiches the refrigerant pipe, and a second state that is maintained in a posture in which the retaining pipe (70) does not sandwich the refrigerant pipe (10) with the refrigerant jacket (40). A refrigerating apparatus having a shape that allows rotation of the pressing plate between the two, and allows the pressing plate (70) to slide in the intersecting direction with respect to the refrigerant jacket (40). A refrigeration apparatus (1) having a refrigerant circuit that performs a refrigeration cycle by circulating refrigerant,
A refrigerant pipe (10) through which the refrigerant flows;
A power device (20);
A cooler (30) for cooling the power device (20) with the refrigerant,
The cooler (30) includes the refrigerant pipe (10) between the refrigerant jacket (40) having a pipe arrangement groove (51L, 51R) in which the refrigerant pipe (10) is arranged and the refrigerant jacket (40). And the pressing plate (70) is fixed to the refrigerant jacket (40) so that the refrigerant pipe (10) is pressed against the piping arrangement groove (51L, 51R). A fixed fastener (80),
The refrigerant jacket (40) has a refrigerant jacket side temporary fixing part (64 to 67),
The presser plate (70) can be temporarily fixed to the refrigerant jacket (40) by engaging the refrigerant jacket side temporary fixing part (64 to 67) with the presser plate side temporary stop. With stop (75L, 75R)
The refrigerant jacket side temporary fixing part (64 to 67) and the pressing plate side temporary fixing part (75L, 75R) hold down the refrigerant pipe (10) against the pipe arrangement groove (51L, 51R). The refrigerant jackets (70) are engaged with each other by being slid relative to each other in the intersecting direction intersecting with the refrigerant jacket (70), and the retaining plate (70) receives the elastic force of the refrigerant pipe (10) in the engaged state. 40) having a shape that regulates displacement in a direction away from
The refrigerant jacket side temporary fixing part (64 to 67) is provided on one end side in a direction orthogonal to the direction in which the pipe arrangement groove (51L, 51R) extends, and the first refrigerant jacket side temporary fixing part (64, 66). And a second refrigerant jacket side temporary fixing portion (65, 67) provided on the other end side,
The pressing plate side temporary fixing portion (75L, 75R) includes a first pressing plate side temporary fixing portion (75L) that can be engaged with the first refrigerant jacket side temporary fixing portion (64, 66), and the second refrigerant. A second holding plate side temporary fixing portion (75R) which can be engaged with the jacket side temporary fixing portion (65, 67)
The first refrigerant jacket-side temporary fixing part (64, 66) and the first pressing plate-side temporary fixing part (75L) are connected to the refrigerant pipe (70) between the pressing plate (70) and the refrigerant jacket (40). 10) and a second state maintained in a posture in which the refrigerant pipe (10) is not sandwiched between the pressing plate (70) and the refrigerant jacket (40). while permitting rotation of the pressing plate to and from the state, it has a shape that allows the slide to the cross direction with respect to the refrigerant jacket (40) of the pressing plate (70),
In the first state, the first refrigerant jacket side temporary fixing portion (64, 66) and the first pressing plate side temporary fixing portion (75L) engage with each other and the second refrigerant jacket side temporary fixing portion (65). 67) and the second pressing plate side temporary fixing portion (75R) are engaged with each other, whereby the pressing plate (70) sandwiches the refrigerant pipe (10) with the refrigerant jacket (40). In the second state, the engagement of the second refrigerant jacket side temporary fixing part (65, 67) and the second pressing plate side temporary fixing part (75R) is released, and the second refrigerant jacket The side temporary fixing part (65, 67) and the second pressing plate side temporary fixing part (75R) are the first refrigerant jacket side temporary fixing part (64, 66) and the first pressing plate side temporary fixing part (75L). Are displaced in directions away from each other. Accordingly, the pressing plate (70) is the refrigerant pipe (10) a refrigeration system is maintained in a posture not performed pinching between said coolant jacket (40). The refrigeration apparatus according to claim 1 or 2,
The refrigerant jacket (40) and the pressing plate (70) are held in a state in which the refrigerant jacket side temporary fixing portions (64 to 67) and the pressing plate side temporary fixing portions (75L, 75R) are engaged with each other. Refrigeration apparatus having the holding means (65b, 76R, 77R). The refrigeration apparatus according to any one of claims 1 to 3,
The said cooler (30) is a freezing apparatus arrange | positioned with the attitude | position in which the sliding direction with respect to the said refrigerant | coolant jacket (40) of the said press board (70) becomes vertically downward. The refrigeration apparatus according to any one of claims 1 to 4,
The said press plate (70) is a freezing apparatus which has a shape which can be elastically deformed when the said refrigerant | coolant jacket side temporary fix part (64-67) and the said press plate side temporary fix part (75L, 75R) are engaged.

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